caa a22 4500 477097936 CHVBK 20180405111533.0 cr unu---uuuuu 170330e19961101xx s 000 0 eng 10.1007/BF02996410 doi (NATIONALLICENCE)springer-10.1007/BF02996410 Unified approach to noise analysis in the Wigner distribution and spectrogram [Elektronische Daten] [LJubisa Stanković, Veselin Ivanović, Zoran Petrović] Une Approche Unifiée de L'analyse du Bruit Appliquée à la Distribution de Wigner et au Spectrogramme An analysis of time-frequency representations of noisy signals is performed. Using the method for time-frequency signal analysis which was recently defined by Stankovic (the S-method), the influence of noise on the two most important distributions (spectrogram and Wigner distribution) is analyzed in unified manner. It is also shown that, for signals whose instantaneous frequency is not constant, an improvement over the spectrogram and the Wigner distribution performances in a noisy environment may be achieved using the S-method. The expressions for mean and variance are derived. Results are given for several illustrative and numerical examples. Springer-Verlag, 1996 Signal theory nationallicence Frequency time representation nationallicence Additive noise nationallicence Théorie signal nationallicence Représentation temps-fréquence nationallicence Bruit additif nationallicence Stanković LJubisa Elecktrotehnic'ki fakultet, University of Montenegro, 81000 Podgorica, Montenegro, Yugoslavia aut Ivanović Veselin Elecktrotehnic'ki fakultet, University of Montenegro, 81000 Podgorica, Montenegro, Yugoslavia aut Petrović Zoran ElecktrotehniCki fakultet, University of Belgrade, 11000 Beograd, Serbia, Yugoslavia aut Annales Des Télécommunications Springer-Verlag 51/11-12(1996-11-01), 585-594 0003-4347 51:11-12<585 1996 51 12243 https://doi.org/10.1007/BF02996410 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02996410 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stanković LJubisa Elecktrotehnic'ki fakultet, University of Montenegro, 81000 Podgorica, Montenegro, Yugoslavia aut NATIONALLICENCE 700 1- Ivanović Veselin Elecktrotehnic'ki fakultet, University of Montenegro, 81000 Podgorica, Montenegro, Yugoslavia aut NATIONALLICENCE 700 1- Petrović Zoran ElecktrotehniCki fakultet, University of Belgrade, 11000 Beograd, Serbia, Yugoslavia aut NATIONALLICENCE 773 0- Annales Des Télécommunications Springer-Verlag 51/11-12(1996-11-01), 585-594 0003-4347 51:11-12<585 1996 51 12243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer